Newtonian theory of gravitation is not a very accurate model. Gravitational fields are also conservative force fields since the work done by gravitational forces is independent of the path. The mutual gravitational force between two masses M and m is given by G is the universal gravitational constant and rˆ is the unit vector in the direction of r. The gravitational field strength (g) caused by a mass M at a given point is a function of the position of the point. The gravitational field strength at a given point is defined as the force on unit test mass exerted by the gravitational force. Several quantities such as gravitational field strength, gravitational force, and gravitational potential are defined in this model. In classical mechanics, the gravitational field is a vector field. The gravitational field is the force field in gravitational interaction which is a model used to explain and understand gravitational phenomena. So, Maxwell equations are very useful when dealing with electric and magnetic fields. However, the Maxwell’s equations describe both electric and magnetic fields as a function of charges and currents. (An electric field which remains unchanged with time). The Coulomb’s law can be used to describe an electrostatic field. So, electric fields are conservative fields. The work done by electromagnetic forces in an electric field is independent of the path. Where r is the distance between the point and the charged particle and ε is the permittivity of the medium.Īlso, the force (F) experienced by a charge q can be expressed as r is the distance between two charges The electric field intensity (E) produced by a point charge particle (Q) is given by The electric field intensity at a given point is defined as the force on a stationary unit test charge particle exerted by electromagnetic forces. In the electric field model, several quantities such as electric field intensity, electric flux density, electric potential and Coulomb forces those associated with charges and varying magnetic fields are discussed. Unlike charges (negative and positive charges) attract each other, like charges (negative- negative or positive- positive) on the other hand, repel. Electric fields are produced by electric charges or varying magnetic fields. Electric field lines are directed towards negative charges whereas they are directed outwards from positive charges. In this model, an electric field is represented by field lines. In physics, an electric field is a model used to explain or understand the influences and behaviors of charges and varying magnetic fields. This article tries to describe the difference between electric field and gravitational field in detail. This is the main difference between electric field and gravitational field. Even though neutral particles such as neutrons do not interact via electromagnetic forces, they do via gravitational forces. A gravitational field, on the other hand, is a model which is used to explain gravitational phenomena of masses. So, neutral particles cannot create electric fields. Electric fields are produced by stationary charge particles and varying magnetic fields. An electric field is a model which is used to explain influences and behaviors of charges and varying magnetic fields. In physics, electric and gravitational fields are very important concepts. Main Difference – Electric Field vs Gravitational Field
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